Femoral neck stress fracture

Case contributed by Dr Mostafa El-Feky

Presentation

Recent left hip pain. No history of trauma.

Patient Data

Age: 60 years
Gender: Female
X-ray

A faint sclerotic line is noted at the medial cortex of the neck of the left femur.

MRI

A linear hypointense fracture line is noted at the medial aspect of the left femoral head-neck junction with extensive surrounding marrow edema, reflecting a stress fracture. This is associated with mild surrounding soft tissue edema.

Normal marrow signal of the right femoral head, no MRI evidence of avascular necrosis.

Case Discussion

Typical MRI and X-ray appearance of a femoral neck stress fracture. Femoral neck stress fracture is a rare condition. MRI is the best modality to detect the fracture line and its extension, as well as the marrow edema and to exclude cartilaginous or ligamentous injury.

Stress fractures are caused by abnormal stress on normal bone, whereas insufficiency fractures are due to normal stress on the abnormal bone. 

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Case information

rID: 67649
Published: 26th Apr 2019
Last edited: 29th Apr 2019
Inclusion in quiz mode: Included
Institution: Dar El Ashaa Center

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